I personally refuse to cast curses- I simply don't find myself angry enough to... but I've noticed a profound absence of disarming curses, and more or less an abundance of vengeful curses. For example, there is a curse listed for Blinding an enemy permanently... What if you simply wanted to teach that someone a lesson for making a snide remark about blind people and wanted to only have them blind for a few hours to a day?
I plan on researching it, because I am curious. I know also, in the same manor, mute curses also are absent. There is one, which only lasts for one minute... I feel if i ever felt the need to silence someone, I would want it to last a little while longer.
I know next to nothing about black magick and am simply wondering why these sort of curses, punishment more than vengeance, don't seem to be often used.
If anyone has any input I would like to know. :) Afterall, I am just learning.